The capacity of wireless networks
IEEE Transactions on Information Theory
A network information theory for wireless communication: scaling laws and optimal operation
IEEE Transactions on Information Theory
Transmission capacity of wireless ad hoc networks with outage constraints
IEEE Transactions on Information Theory
Optimal power control, scheduling, and routing in UWB networks
IEEE Journal on Selected Areas in Communications
A unified model for interference analysis in unlicensed frequency bands
IEEE Transactions on Wireless Communications
Adaptive instantiation of the protocol interference model in wireless networked sensing and control
ACM Transactions on Sensor Networks (TOSN)
| Hi-index | 0.00 |
In wireless ad hoc network medium access control (MAC) protocol design, it is important to incorporate an exclusion region around a receiver, such that nodes inside the exclusion region are not allowed to transmit, to limit the interference caused to the receiver. In this paper, we investigate the performance trends of a spread-spectrum-based network with respect to outage constraints and derive its relationship with the size of the exclusion region and the spreading factor. A non-spread-spectrum-based network is a special case with a spreading factor of one. We show that there exists an optimal size for the exclusion region with respect to maximizing the performance of the network which depends upon the spreading factor used in the network. It is also shown that the throughput of the network degrades while the throughput of individual users improves with an increase in spreading factor. These results are used to show that spectrum-sharing (SS) schemes based on interference-avoidance are desirable from a network performance perspective while interference-averaging-based SS schemes are desirable from the perspective of the performance of individual users.